# [LIBDFWD_TIMER_EXP_NOTIF_ERR](https://apps.juniper.net/syslog-explorer/?msg=LIBDFWD_TIMER_EXP_NOTIF_ERR)

## SYSLOG Details
- **Message**: Timer expiry notification callback <variable>error-message</variable>
- **Help**: Setting callback handler for stats timer expiry notification failed
- **Description**: LIBDFWD encountered failure in registery function while trying to set callback handler for stats timer expiry notification. The log entry indicates the specific error.
- **Type**: Internal: Internal log message
- **Severity**: error
- **Cause**: -
- **Action**: Contact your technical support representative.
- **Attributes**: error-message
- **Facility**: LOG_DAEMON

## Found this message in the following releases:
- [Junos OS 24.2R1](https://apps.juniper.net/syslog-explorer/?msg=LIBDFWD_TIMER_EXP_NOTIF_ERR&sw=Junos%20OS&rel=24.2R1)
- [Junos OS 23.4R1](https://apps.juniper.net/syslog-explorer/?msg=LIBDFWD_TIMER_EXP_NOTIF_ERR&sw=Junos%20OS&rel=23.4R1)